Machine for winding thread



Nov.A 30, 1954 H. F. BORG 2,695,757

MACHINE FOR WINDING THREAD Filed Oct. 13, 1950 sa s6 FIG. 34 35 3l FF"6/4 S 4946.5064.

i 45 2- lh( las 4s 4 INVENTQR HERBERT E BORG ATTORNEY United StatesPatent "O M MACHINE FOR WINDING THREAD Herbert F. Borg, Worcester, Mass.

Application ctoher 13, 1950, Serial No. 190,029

.6 Claims. .(Cl. 242-48) My invention relates to machines for windingthread or other strand-like material into packages or bobbins .of thekind made up of equal layers that are progressively offset toward thebutt end of the package, so as to provide a package with a cylindricalbody portion and a tapered or pointed nose end. Such machines haveheretofore been devised, but they do not run smoothly and do not windsuch uniform and compact packages as are needed for proper unwinding forthe purposes for which such packages are particularly designed. lt is anobject of my invention to provide a machine, or an attachment that canbe applied to various machines now in use, and which will provideprogressive relative axial movement between the spool or spindle and theyarn guide as required for making a package tapered at the head end, butwithout any shaking or vibrating movement such as tends to make thepackage non-uniform, as with layers irregularly arranged or with hard orsoft spots in the package, such as interfere with uniform unwinding.

Other objects of my invention are to provide an attachment that shall bevery simple, with few and inexpensive parts; that shall be positive inaction and exact in movement; in which friction shall be reduced to aminimum and that shall have a minimum of moving parts so as to reducethe tendency to become loose, to get out of adjustment and to wear, allof which things may cause improper operation and call for repairs andreplacements, with consequent loss in eiiiciency.

Referring now to the annexed drawings, which are made a part of thisapplication and in which similar reference characters indicate similarparts:

Fig. 1 is an elevation of a spool Winder with parts omitted, and showinga preferred form of the invention,

Fig. 2, a horizontal section, on line 2 2 of Fig. l,

Fig. 3, a vertical section on line 3-3 of Fig. 2,

Fig. 4, a section on line 4-4 of Fig. 1,

Fig. 5, a View similar to Fig. 2, but with the parts in the positionassumed when the package is fully wound,

Fig. 6, an elevation of a modified form, and

Fig. 7, a section on line 7-7 of Fig. 6.

ln the drawings, the parts indicated by reference characters S, T, 10-23, 25, 33-36 and 3S to 4i) are conventional and may be the same asthose disclosed in Patent No. 1,973,328, granted to myself and Dugald E.Walker on September ll, 1934.

The means for moving the spool axially to vary the location of thethread layers progressively as the wound mass increases in diameterincludes a xed stud 41 having a reduced threaded end 42 screwed into ahole in the framework l0. At one end of the stud there is a collar 43iixed to the stud by a set screw 44. At an intermediate point on thestud a freely rockable arm 45, iixed to a sleeve 46 by a setscrew 47, ismounted to swing toward and from the spool S as the diameter of thewinding increases, said arm having a yoke 45 iixed to its upper end by ascrew 46 and the arm being biased toward the spool by a coil spring 48which is secured at one end to the arm 45 and at the other end to thefixed collar i3. The yoke 45 at the upper end of the arm 45 supports aroller 49 on a pivot pin 59.

The sieeve 46 at its lefthand end, carries a gear 51 fixed to the sleeveby a setscrew 52. A gear 53 that meshes with gear l is fastened by asetscrew 54 to an upright shaft 55 that has a tapered lower endjournaled in a tapered recess in a bracket 56 which has a lower hubportion lixed to stud 41 by setscrews 57 and an upper y 2,695,757Patented Nov. 30, 1954 ICC hollow arm 58 (Fig. 3) in which the shaft 55is journaled. Shaft 55 has an integral annular flange at 59 bearing onthe upper end of arm 58 and. a yoke 60 is fixed to said shaft above theflange by a setscrew 61, the yoke having a bent arm provided at itsouter end `with a finger in the shape of a renewable pin 62 carrying aroller bearing 63 located in an annular slot at 64 in a sleeve 64' thatis splined to a spindle 65 at 66 for rotation therewith, the lingersengaging at opposite sides of the sleeve. The spool S is connected tothe sleeve in any suitable or conventional manner, as by a frictionbushing 67, and is shown as having a conventional head at one end only,against which the layers of thread or like material abut at one end toform a package such as that indicated at T in Fig. 5.

The spring 4S serves to hold the gear Sll in mesh with gear 53. A pin 68prevents disengagement of the sleeve 64 from the spindle 65.

In the operation of the device of my invention the spool is rotated andthe thread guide is traversed along the spool in conventional mannerand, as the diameter of the winding on the spool increases the roller 49is moved progressively outward from the axis of the spindle, actingagainst the tension of the spring 48 to force the spool progessivelytoward the right in Fig. 1 through the intermediate parts, including thesleeve 46, the gears 5l and 53, the shaft 55 and arm 60. The action ispositive, friction is reduced to a minimum, and there is little chanceof wear such as would cause uneven or uncertain winding. The endwisemovement of the spool may be opposed by any desirable or conventionalmeans.

In the modiiied form of the invention, shown in Figs. 6 and 7, thegeneral arrangement of parts is the same as in the form above described,but here the thread eye support 16 is connected by a iiexible band 70aflixed at its opposite ends to support 16 and gear 51 respectively, sothat increase in the size of the winding causes the shaft 55 to rotateon its axis and thus to move 'the spool endwise through connections suchas previously described. The action is substantially the same as in themodification iirst described, as will be obvious.

It will be evident to those skilled in the art that various forms ofbobbins, quills, and other thread mass holding devices may be employedWith the device of my invention, and that many changes may be made inthe devices herein disclosed, all without departing from the spirit ofthe invention. It is to be understood, therefore, that various terms areused for description and not for limitation and that I do not limitmyself to what is shown in the drawings and described in thespecification, but only as indicated in the appended claims.

Having thus fully described my invention, what I claims is:

l. In a spool winder having a rotatable yarn carrier and a traversingyarn guide, means for progressively displacing the yarn carrier axiallyduring a winding operation comprising a device adapted to Contact theperiphery of a thread mass on the yarn carrier and being movable indirect proportion to the increase in diameter of the winding, arockshaft having direct connection with the yarn carrier, andconnections between said rockshaft and said device for moving the yarncarrier progressively endwise, the connections from the device to therockshaft including a bevel gear fixed to the device to move therewithas the thread mass increases in diameter, and another bevel gear meshingwith the first-named gear, the second-named gear being fixed withrelation to the rockshaft.

2. In a spool Winder having a rotatable spindle for a yarn carrier, anda traversing thread eye, means for progressively displacing the yarncarrier axially with reference to the throw of the thread eye during thewinding comprising a rockshaft directly connected to the carrier, abevel gear on the rockshaft, and a second bevel gear movable directly bythe increase in diameter of the winding and meshing with the first-namedbevel gear.

3. In a spool winder having a rotatable yarn carrier and a traversingthread eye, means for progressively displacing the yarn carrier axiallyduring th-e winding operation comprising a roller mounted to engage theperiphery of a thread mass on the spool, said roller being movablebodily outward as the winding grows, a gear in Xed relation to theroller to oscillate therewith, a rockshaft having an arm directlyconnected with the yarn carrier, and a gear on the rockshaft in meshwith the first-named gear.

4. In a spool Winder having rotatable yarn carrying means and atraversing thread guide, means for progressively displacing the yarncarrying means axially during the winding operation, comprising anelement contacting with the periphery of a thread mass being wound andswingable away from the carrier in proportion to the increase indiameter of said mass, a bevel gear xed to said element to swingtherewith, a rockshaft having a yoke with a finger engaging in anannular groove in the yarn carrier, and a bevel gear on the rockshaft inmesh with the rst-named bevel gear.

5. A device as in claim 4, including an anti-friction bearing on saidfinger.

6. In a spool Winder having a rotatable yarn carrier and a traversingyarn guide, means for progressively displacing the yarn carrier axiallyduring a winding operation comprising a device adapted to contact theperiphery of a thread mass on the yarn carrier and being movable indirect proportion to the increase in diameter of the winding, arockshaft having direct connection with the yarn carrier, andconnections between said rockshaft and said device for moving the yarncarrier progressively endwise, the connections from the device to therockshaft including a bevel gear connected by a ilexible band to andmoved by the device as the thread mass increases in diameter, andanother bevel gear meshing with the rst-named gear, the second-namedgear being xed with relation to the rockshaft.

References Cited in the file of this patent 15 UNITED STATES PATENTSNumber Name Date 1,126,808 McKean Feb. 2, 1915 1,915,241 Reece June 20,1933 20 2,287,012 Abbott June 23, 1942 2,290,391 Taylor July 21, 19422,605,054 Spencer July 29, 1952

